ios/chrome/browser/first_run/first_run.mm

   1 // Copyright 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ios/chrome/browser/first_run/first_run.h"
   6
   7 #include "base/files/file_path.h"
   8 #include "base/files/file_util.h"
   9 #include "base/path_service.h"
  10 #include "components/pref_registry/pref_registry_syncable.h"
  11 #include "ios/chrome/browser/chrome_paths.h"
  12
  13 namespace {
  14
  15 // The absence of kSentinelFile file will tell us it is a first run.
  16 const base::FilePath::CharType kSentinelFile[] = FILE_PATH_LITERAL("First Run");
  17
  18 // RLZ ping delay pref name.
  19 const char kPingDelayPrefName[] = "distribution.ping_delay";
  20
  21 }  // namespace
  22
  23 FirstRun::FirstRunState FirstRun::first_run_ = FIRST_RUN_UNKNOWN;
  24
  25 // static
  26 bool FirstRun::GetFirstRunSentinelFilePath(base::FilePath* path) {
  27   base::FilePath first_run_sentinel;
  28   if (!PathService::Get(ios::DIR_USER_DATA, &first_run_sentinel))
  29     return false;
  30   *path = first_run_sentinel.Append(kSentinelFile);
  31   return true;
  32 }
  33
  34 // static
  35 bool FirstRun::IsChromeFirstRun() {
  36   if (first_run_ != FIRST_RUN_UNKNOWN)
  37     return first_run_ == FIRST_RUN_TRUE;
  38
  39   base::FilePath first_run_sentinel;
  40   if (!GetFirstRunSentinelFilePath(&first_run_sentinel) ||
  41       base::PathExists(first_run_sentinel)) {
  42     first_run_ = FIRST_RUN_FALSE;
  43     return false;
  44   }
  45   first_run_ = FIRST_RUN_TRUE;
  46   return true;
  47 }
  48
  49 // static
  50 bool FirstRun::RemoveSentinel() {
  51   base::FilePath first_run_sentinel;
  52   if (!GetFirstRunSentinelFilePath(&first_run_sentinel))
  53     return false;
  54   return base::DeleteFile(first_run_sentinel, false);
  55 }
  56
  57 // static
  58 bool FirstRun::CreateSentinel() {
  59   base::FilePath first_run_sentinel;
  60   if (!GetFirstRunSentinelFilePath(&first_run_sentinel) ||
  61       base::PathExists(first_run_sentinel))
  62     return false;
  63   return base::WriteFile(first_run_sentinel, "", 0) != -1;
  64 }
  65
  66 // static
  67 const char* FirstRun::GetPingDelayPrefName() {
  68   return kPingDelayPrefName;
  69 }
  70
  71 // static
  72 void FirstRun::RegisterProfilePrefs(
  73     user_prefs::PrefRegistrySyncable* registry) {
  74   registry->RegisterIntegerPref(GetPingDelayPrefName(), 0);
  75 }